The treadwear rating of a tire may be useful
in estimating how many miles or kilometers use you will get from a new
If you missed the overview see Treadwear Part 1
As with lifespan, the mileage you get from a tire depends very much on the individual specific driving conditions which that tire is subjected to.
If you are replacing a tire with a new
one and you already know how many miles (or kilometers) you have gotten
in use, and the roads and driving conditions will be more or less the
same you can expect something very similar with a tire that has the
same tire treadwear rating.
Picking up on the earlier example if your tire with a treadwear of 240 gave you 30,000 miles use, you'd be reasonable in expecting about the same number of miles from a new tire with the same rating.
Start by finding the word "TREADWEAR" followed
by a number. In the photo below the treadwear rating of the tire is 340.
Begin your calculations by dividing the mileage you got from your last tire by the rating of that tire to give you a mileage factor for your own particular use. In our example dividing 30,000 by 240 gives a result of 125.
30,000 / 240 =125
Use this factor in considering tires with a different treadwear. A tire rated at 100 might be expected to last only 12,500 miles where another with a rating of 320 would have an expected life of 40,000 miles
320 x 125 = 40,000
Always remember, that if you change vehicles, or move to another area where roads or climate are different, or if another person is going to use the vehicle, the results are quite likely going to be different.
Download your own Treadwear Calculator by clicking here.
Another thing to consider is what the manufacturer's warranty states for life expectancy of the tire. If it is greatly different from what you just calculated, you need to be asking why there's a difference.As we've mentioned before, if you are comparing two tires made by the same manufacturer, Goodyear with Goodyear, Pirelli with Pirelli, or Michelin with Michelin your results are going to be more accurate.
If you like to shop on line we suggest you consider the manufacturer's promotions available from The Tire Rack's Special Offers: You may be able to save on quality tires that will suit your needs.
Especially when you are comparing major, reputable tire companies remember that in practice there is a tendency for most of the tire manufacturers to attempt to produce tires which meet the conditions of their markets and charge similiar prices. So if you compare two tires with the same treadwear numbers, their prices should be more-or-less the same.
Visit Tire Information World's Exclusive Tire Care and Accessories Store.